Air India — Refund not processed

Following are the chronicle of the event:
1. Ticket bought on May 4th, 2022, ticket attached and the number:[protected]
2. Paid on my Citibank credit card ending in 5167 for amount INR 106, 586
3. Cancelled the ticket in August 2022.
4. Followed up continuously for refund and finally Air India said they refunded on 10th of January, 2023 with txn ID: 098KUS74J51HX. Air India will not share the exact refund amount nor will they say whether they received a confirmation of receipt of refund txn from Citibank.
5. On the other hand, Citibank made me wait for 15 days, saying it can take up to 15 days to receive the refund. Now that it is not reflected on my card, Citibank says they can do nothing.
6. Citibank is asking for the amount refunded and proof of refund with 23 digit numeric refund txn id but Air India will not give anything phone.
7. I have emailed to Air India as well but not a response even from Air India. This is horrible.